Sorry to say, but they are not interchangeable. They require different ballasts to fire the bulbs. A T4 12w ballast will not fire a 20w HO T5 bulb.Herein, what is the difference between t4 and t5 lights?
The main difference between T4's and T5's is the thickness of the tubes. The T4 has a half-inch diameter, while the T5 is five-eighths of an inch.
Similarly, are t5 and t8 bulbs interchangeable? T5 and T8 lamps have different diameters so they are not usually interchangeable. The pin sockets will only line up and complete a circuit in a correctly sized ballast. There are a few ballasts which can be rewired for T5 or T8 bulbs. However, you must still choose a fluorescent bulb of the appropriate nominal length.
Keeping this in consideration, are t5 and t10 bulbs interchangeable?
The main difference is in size…the T8 is one inch in diameter and everything else is divisible by that number: T5 = 5/8 inch, T6 = 6/8 inch, T8 = 1 inch, T10 = 1.25 inches (10/8), T12 = 1.5 inches in diameter (12/8). While the size is the main difference there are other differences that are worth mentioning.
Are t5 bulbs being discontinued?
Lamps affected include fluorescent 4 foot T8, T5, T5HO and 2 foot U-bent lamps. However, many 32W lamps have either been re-engineered or discontinued by the manufactures. Most current fluorescent T5 linear lamps already comply with the new standards. The 2015 rule-making takes effect in January of 2018.
What does t5 mean in lighting?
What does T5 mean? The "T" in lamp nomenclature represents the shape of the lamp-tubular. The number following the "T" usually represents the diameter of the lamp in eighths of an inch (1 inch equals 2.5 centimeters). T5 lamps have a diameter equal to 5 times an eighth of an inch, or 5/8".What does t4 mean in halogen bulbs?
Q: what does "t4" mean? Answer this question. Cancel Answer. A: The "T" in T3 or T4 type halogen bulbs refers to the tubular shape, (not base) while the number refers to the diameter of the bulb. So, "T" is for Tubular, (but they can also be referred to as the 'peanut bu… see more.Are fluorescent lights being discontinued?
US Department of Energy (DOE) regulations began phasing out various sizes of commercial fluorescent light bulbs in 2012. About all you can get today is the fluorescent workhorse of commercial lighting—the T81 bulb. By January 26, 2018 even T8s will be banned to align with new DOE energy efficiency standards.What fluorescent light is the brightest?
Philips T12 Fluorescent Tube Light Bulb Philips is the leading brand in lightbulbs for good reason, and these 110W fluorescent bulbs are some of the brightest around.How do I know if my ballast is t8 or t12?
This will reveal a lot about your current fluorescent tube and usually indicate if the bulb is T8 or T12. If no markings are available, the size in diameter of the tube is the easiest way to determine the type you have installed. T8 tubes are 1-inch in diameter and T12 tubes are 1 1/2 -inch.Are fluorescent tubes being phased out UK?
Halogen lightbulbs are soon to become obsolete in the UK following a ban made by the European Union. Retailers will have to replace their stocks of halogen lightbulbs with more energy-efficient alternatives, such as LEDs or compact fluorescent bulbs.How do I know what size fluorescent bulb I need?
In order to identify which size you need, the easiest way to tell is to read the label near the base of the tube. If this information is no longer legible, you can measure the bulb's diameter. Fluorescent tubes are measured in eighths of an inch.What is the difference between t5 and t9 bulbs?
T5 lamps are 40% smaller than T8 fixtures, but are capable of containing just as much and sometimes more light in a smaller area. This combined with the T5 bulb's ability to provide more light (lumen) than the other bulbs means long-term cost savings on your commercial and residential projects.What does t10 mean in light bulbs?
Specialty Bulbs Tubular bulbs are described as "T" bulbs with the number following the T being the diameter of the bulb in eighths of an inch. A "T10" or T-10 is a tubular bulb that is ten eighths (10/8) of an inch in diameter or 1.5" inches. A "T4" (4/8) would be four eighths or one half an inch in diameter.Will a t12 work in a t10 fixture?
T12 and T10 lights also use the same ballast, which is essentially an inductor, so there is nothing on the fixture that you have to change to replace a T12 tube with a T10 tube. Smaller tubes will use less power for a comparable amount of light.What does t7 mean on a light bulb?
The T group: T7, T8, T10, T14 Numbers in each code refer to the bulb's diameter in one-eighths of an inch. T7 bulb: 7/8 = 7/8″ diameter. T8 bulb: 8/8 = 1″ diameter.Can I use a t8 bulb in a t10 fixture?
According to HowStuffWorks, "Fluorescent lamp starters are rated by wattage, and it's important you use the right starter for the tube in your fixture". If you're upgrading the ballast and looking at T8 tubes that draw more power than the T10 tubes your're replacing, then I would say yes, replace the starters as well.What is the difference between t9 and t10 bulbs?
The T indicates a tubular design and the number behind it indicates the diameter in 1/8" increments. So a T9 would be a 1 1/8" diameter tube and a T10 would be a 1 1/4" diameter tube. If you are wanting a T10 the bracket that holds it may be too large of a diameter to safely hold the 33890.What is a t5 wedge base?
T-5 Glass Wedge Base bulbs are designated by the letter T. The T designates that the bulb is tubular in shape. T-5 Glass Wedge Base bulbs are five eighths of an inch or 0.6250" or 15.875 millimeters in diameter.What is the difference between t5 and t8 bulbs?
What are the Main Physical Differences Between a T5 and a T8 Lamp? T5 lamps have a diameter of 5/8” compared to 1” diameter of T8 lamps. T5 lamps are available only in metric lengths (and are generally shorter than equivalent T8). T5 lamps utilize a mini-bipin base while T8 lamps use a medium bipin base.Can you use a t8 bulb with a t12 ballast?
T12 tubes pull 40 watts, and are frequently being replaced with lower wattage t8 tubes, which operate on 32 watts. When posing the question can a t8 light work on a t12 ballast, the short answer is no. The only way around the dilemma is to replace the ballast.Are t8 bulbs being discontinued?
Even some T8 lamps have been phased out. US Congress has enacted legislation to prohibit the manufacture of these and other inefficient lighting technologies, and is calling for manufacturers to meet minimum efficiency requirements and lumens per watt for new products. 
